Stovepipe-thimble



(No Model.) 2 Sheets-Sheet 1.

0. W. SOHWANE-NGEL 85 J. F. SAGKSTEDER.

' STOVEPIPB THIMBLE.

Patented Mar 22, 1898.

IIII'IIJIIIIJII 2 a 5. @Wdq um 7 WITNESEE5= K I INVENTUHS- 1 6 iqffmmewll irn AENT CHARLES WV. SCHWANENGEL AND JOSEPH F. SACKSTEDER, OFDAYTON,

- OI-IIO.

STOVEPlPE THlMBLE.

SPECIFICATION forming part of Letters Patent No. 600,894, dated March22, 1898. Application filed December '7, 1896. Serial No. 614,700. (Nomodel.)

To all whom it may concern.-

Be itknown that we, CHARLES W. SoHwAN- ENGEL and JOSEPH F. SACKSTEDER,citizens of the United States, residing at Dayton, in the county ofMontgomery and State of Ohio, have invented certain new and usefulImprovements in Stovepipe-Thimbles; and we do declare the following tobe a full, clear, and exact description of the invention, such as willenable others skilled in the art to which it appertains to make and usethe same, reference beinghad to the accompanying drawings, and to theletters of reference marked thereon, which form a part of thisspecification.

Our invention relates to new and useful improvements instovepipe-thimbles, and comprises a stovepipe-thimble such as ishereinafter fully described in the specification and set forth in theclaim.

Referring to the accompanying drawings, which form a part of thisapplication, Figure 1 is an elevation of our improved stovepipethimbleplaced in an opening in a wall. Fig. 2 is a slightly-larger front viewof the thimble with the front plate removed. Fig. 3 is a view of theinner side of the front plate. Fig. 4 is an enlarged'view of the upperportion, showing the gearing. Fig. 5 is a transverse section on the line.2 2, Fig. 3. Fig. 6 is a detached side elevation of one of the guides.Fig. 7 is a front view of the thimble with the outer or front plateremoved. Fig. 8 is a modification in which the thimble is adapted to beplaced in a ceiling or horizontal wall. Fig. 9 is a section on the linea: m, Fig. 8. Fig. 10 is a section through the outer edge of the plateson the line y y, Fig. 1.

Similar letters of reference indicate corresponding parts in the severalviews.

A designates a wall having an opening in which the thilnble is placed.The said thimble consists of the following parts:

B designates a rear plate having a projecting portion b, in which therear end of a shaft 0 is mounted. d and e designate a toothed pinion anda ratchet-wheel, respectively, which are mounted on said shaft, and B isa housing, the flange B of which is secured to the projecting portion b.This housing incloses the wheels cl and e and provides a bearing for theouter end of the shaft 0. The extreme outer end of said shaft isprovided with a square terminal, which may be turned with a wrench orother suitable implement.

f is a detent pivoted to the upper part of the flange B and projectingthrough an opening f in the housing to engage with the ratchet-wheel eto prevent any reverse move ment of the pinion cl.

Further reference will be hereinafter made to the above-describedmechanism.

Referring, further, to the rear plate 18, B designates a circularchannel therein formed by ridges l3 and B The dotted circle 0, Fig. 2,indicates the inner circular edge of the plate. D designates a series ofradial slides which are placed against the inner side of said plate B.These slides are maintained in sliding positions by means ofguiding-plates D, which are rigidly secured to the rear plate 13 andloosely inclose said slides. As indicated by dotted lines, the innerends of each alternate slide are overlapped by the adjacent slides oneach side. As shown in Fig. 1, the inner full circle represents theinner ends of the slides when said slides are moved out to their extremeouter positions to admit of the largest pipe. The dotted circlerepresents the area of the opening when the slides are moved to theirinnermost positions. In Fig. 7 they are shown as moved there is onerigidly attached to each slide. E

designates an outer plate having an inner circular opening of a diametercorresponding to that of the plate 13 and having upon its inner sidecams or projections 41 substantially of the curvatures and lengths shownin Fig. 3. When the said plate is placed in position, as shown in Fig.1, one of these cams 13 fits in each of the channels h in the guides h,and as the said plate E is turned movement is imparted to the slides Dinward and outward according to the parts of the cams 1, that are incontact with said guides. E designates peripheral teeth on the plate E,that are in mesh with the pinion d, and said plate is thereby rotated toimpart the desired movement to the slides. When the plate E is placed inposition, as shown in Figs. 1 and 8, its outer rim fits into the channelB and it is maintained in said position by set-screws j, that penetratethe periphery of said plate between any two of the teeth, and have theirinner ends projected below an annular shoulder it, formed on the flange13. There is essentially some clearance between the outer side of theflange and the screws in order that the plate E may turn, as shown inFig. 10.

The construction shown in Figs. 8 and 9 has some modifications whichadaptit to be placed in theceiling. Referring to this construction, Hdesignates a flanged sleeve or thinble which is inserted in the openingin the ceiling. I is another thimble which is riveted to the plate Bandfits over the thimble H. The rest of the construction is substantiallythe same as hereinbefore described, with the addition of means forventilation, which consists in providing the inner ends of each of theslides D with openings 0, through which air may escape from the room tothe flue. There are also openings 0 through the inner and outer plates Band E and the guides D.

Having fully described our invention, we claim- A stovepipe-thimblecomprising an annular plate B having a housing B, and annular flanges Band B forming an annular channel B the flange B also terminating in alaterally-projected shoulder 70, a series of slides D mounted againstthe inner face of said plate B, a guide h mounted on each of saidslides, a series of guide-plates D secured to the face of the plate Beach of said plates D inclosing the edges of each two adjacent slides D,an outer inclosing plate E having a series of ribs 4L, and provided witha laterally-projected rim with teeth thereon, the said rim being adaptedto enter the groove B on the plate B, and the ribs z' being adapted toenter the guides h, a series of screws j penetrating the rim of theplate E, and projecting beneath the shoulder 70 on the plate B wherebysaid plates E and B are maintained in an operative position, and apinion d inclosed in the housing B and engaging with the teeth on theplate E to rotate the said plate and thereby move the slides D,substantially as and for the purposes specified.

In testimony whereof we affix our signatures in presence of twowitnesses.

CHARLES W. SOHWANENGEL. JOSEPH F. SAOKSTEDER.

'WVitnesses:

R. J. MOGARTY, H. L. FERNEDING.

